Description of problem:
I tried to open a file in gedit from command line.

Steps to reproduce:

Input "gedit /path/to/file.txt" in Terminal or open gedit and try to
open a file via the menu.

Using a fresh installed Fedora 21 alpha fully updated.

Version-Release number of selected component:
gedit-3.14.0-2.fc21

Additional info:
reporter:       libreport-2.3.0
backtrace_rating: 4
cmdline:        /usr/bin/gedit --gapplication-service
crash_function: g_variant_new_parsed_va
executable:     /usr/bin/gedit
kernel:         3.17.1-302.fc21.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #2 g_variant_new_parsed_va at gvariant-parser.c:2469
 #3 g_variant_new_parsed at gvariant-parser.c:2525
 #4 _gtk_source_encoding_get_default_candidates at gtksourceencoding.c:649
 #5 set_default_candidate_encodings at gtksourcefileloader.c:276
 #6 gtk_source_file_loader_constructed at gtksourcefileloader.c:320
 #7 g_object_new_internal at gobject.c:1814
 #8 g_object_new_valist at gobject.c:2034
 #10 gtk_source_file_loader_new at gtksourcefileloader.c:843
 #11 _gedit_tab_load at gedit/gedit-tab.c:2044
 #12 _gedit_tab_new_from_location at gedit/gedit-tab.c:1351